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Q: What causes backfire through air flow system on 1990 Pontiac Bonneville

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
changed mass air flow and crank sensor won't stay running any more tried catalytic converter didnt work
alright i figured as much my wife has been sayin the same thing but its no fun listening to her that would be to easy lol
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